Correlations between biology and male homosexuality Homosexuality, one of the many different sexual behaviors exhibited by humankind, has been rejected, persecuted and denied. Are studies that attempt to find causality moral? Is this search for the “why” of homosexuality a continuation of the heterosexist assumption that heterosexuality is normal and homosexuality abnormal? Do we start from the assumption that homosexuality is a disease and must therefore be treated medically? Is the research currently underway heterosexist? Studies currently underway and those conducted in the recent past have demonstrated that there are strong connections between male homosexuality and biology. By presenting the scientifically significant studies I have come across, I intend to reduce the ignorance surrounding homosexuality and the behaviors often found in it, and show some correlations between biology and male homosexuality. Throughout my research into homosexuality, I have dithered and on, debating the morality of this search for a cause. It seemed that finding the cause of homosexuality was somewhat similar to finding the cause of a disease. Dissatisfied with the association between homosexuality and abnormality, I wondered why scientists were allowed to place homosexuals at such a level. On the one hand, with biology supporting gay men and women, the fight for equality and basic human rights could be won more quickly. Although science and society have made considerable progress since the days of Nazi Germany, when homosexuality was thought to occur through "seduction and mind traps," critics of current scientific curiosity about homosexuality consider every study and experiment to be effort to strengthen the argument that ...... half of the article ...... there is a link to microsatellite markers on the X chromosome in a Canadian study,” poster presentation at the International Academy of Sexual Research, Provincetown , M.A., 1995Slimp, J.C., B.L. Hart, and R.W. Goy, "Heterosexual, autosexual, and social behavior among adult male rhesus monkeys with medial preoptic-anterior hypothalamic lesions," Brain Research 142:105-122 (1978). M. L. Soulairac, "Effets de lésions hypothalamiques sur le comportement sexual et le tractus génital du rat male", Annales d'Endocrinologie (Paris) 17:731-745 (1956). , and Ethics of Sexual Orientation. New York: Oxford University Press, 1999. Whitman, F. L., M. Diamond, and J. Marin, “Homosexual Orientation in Twins: A Report of 61 Pairs and Three Sets of Triplets,” Archives of Sexual Behavior. 22:187-206 (1993).